Support Promises instrumentation on backend.

Source/core/inspector/PromiseOfficer.h

Index: Source/core/inspector/PromiseOfficer.h
diff --git a/Source/core/inspector/PromiseOfficer.h b/Source/core/inspector/PromiseOfficer.h
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+/*
+ * Copyright (C) 2014 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef PromiseOfficer_h
+#define PromiseOfficer_h
+
+#include <v8.h>
+#include "bindings/v8/custom/V8PromiseCustom.h"
+#include "bindings/v8/ScopedPersistent.h"
+#include "bindings/v8/V8Binding.h"
+#include "core/dom/ExecutionContext.h"
+#include "wtf/HashMap.h"
+#include "wtf/Noncopyable.h"
+#include "wtf/RefPtr.h"
+#include "wtf/Vector.h"
+
+namespace WebCore {
+
+class PromiseOfficer {
+    WTF_MAKE_NONCOPYABLE(PromiseOfficer);
+public:
+    class PromiseData : public RefCounted<PromiseData> {

[aandrey, 2014/02/26 16:11:30]

1) make it private
2) why RefCounted? remove it?

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+    public:
+        PromiseData(v8::Handle<v8::Object> promise, v8::Handle<v8::Object> parentPromise, v8::Handle<v8::Value> result, V8PromiseCustom::PromiseState state, ExecutionContext* context)
+            : m_isolate(toIsolate(context))
+            , m_promise(m_isolate, promise)
+            , m_parentPromise(m_isolate, parentPromise)
+            , m_result(m_isolate, result)
+            , m_state(state)
+        { }

[aandrey, 2014/02/26 16:11:30]

style:
{
}

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+
+        v8::Handle<v8::Object> getPromise() {

[aandrey, 2014/02/26 16:11:30]

style: "{" on the next line.
also fix below

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+            return m_promise.newLocal(m_isolate);
+        }
+
+        v8::Handle<v8::Object> getParentPromise() {
+            return m_parentPromise.newLocal(m_isolate);
+        }
+
+        v8::Handle<v8::Value> getResult() {
+            return m_result.newLocal(m_isolate);
+        }
+
+        V8PromiseCustom::PromiseState getState() {
+            return m_state;
+        }
+
+    private:
+        v8::Isolate* m_isolate;
+        ScopedPersistent<v8::Object> m_promise;
+        ScopedPersistent<v8::Object> m_parentPromise;
+        ScopedPersistent<v8::Value> m_result;
+        V8PromiseCustom::PromiseState m_state;
+        // TODO: maybe add m_scriptLocation or other label?

[aandrey, 2014/02/26 16:11:30]

remove

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+    };
+
+    PromiseOfficer()
+        : m_isEnabled(false)
+    { }
+
+    bool isEnabled() {

[aandrey, 2014/02/26 16:11:30]

bool isEnabled() const { return m_isEnabled; }

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+        return m_isEnabled;
+    }
+
+    void enable() {

[aandrey, 2014/02/26 16:11:30]

move to cpp

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+        m_isEnabled = true;
+    }
+
+    void disable() {

[aandrey, 2014/02/26 16:11:30]

move to cpp

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+        if (m_isEnabled) {
+            m_isEnabled = false;
+            m_promiseDataMap.clear();

[Alexandra Mikhaylova, 2014/02/26 14:11:51]

Maybe disable() and clear() should be two different methods

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+        }
+    }
+
+    void addPromise(ExecutionContext* context, v8::Handle<v8::Object> promise, v8::Handle<v8::Object> parentPromise, V8PromiseCustom::PromiseState state);
+    void setPromiseParent(ExecutionContext* context, v8::Handle<v8::Object> promise, v8::Handle<v8::Object> parentPromise);
+    void setPromiseStateAndResult(ExecutionContext* context, v8::Handle<v8::Object> promise, v8::Handle<v8::Value> result, V8PromiseCustom::PromiseState state);
+
+private:
+    bool m_isEnabled;
+    typedef Vector<RefPtr<PromiseData> > PromiseDataVector;

[aandrey, 2014/02/26 16:11:30]

Vector<PromiseData> + drop RefCounted

[Alexandra Mikhaylova, 2014/02/28 13:52:05]

Done.

+    typedef HashMap<int, PromiseDataVector> PromiseDataMap;
+    PromiseDataMap m_promiseDataMap;
+};
+
+} // namespace WebCore
+
+#endif // !defined(PromiseOfficer_h)